BOTANY. 
11 
10 inches long, are in the collection. This is the tree so well known under the name of Mesquite 
or Mesquit. A gum, resembling gum arabic, exudes from the hark. 
Cerasus serotina, DC.; Torr. & Gray, FI. 1 ,p. 410. Sauz valley; August. In fruit. 
Adenostoma jasciculata, Hook. & Am. Bot. Beeciiey, p. 139, t. 139, and p. 338. Hear San 
Diego ; not rare. May. 
Horkelia fusca, Lindl. Bot. Beg. t. 1997 ; Torr. & Gray, FI. 1, p. 435. Hear Los Angeles 
and San Gabriel ; March. The petals vary in breadth in different states of the flower. 
Rubus ursinus, Cham, and Schlecht. in Linncea, 2, p. 11. Hear Santa Barbara ; January. 
Rosa blanda, Ait.; Torr. & Gray, FI. 1, p. 459. On the Mimbres. In fruit; August. 
The stipular prickles are straight and slender, and there are scattered stiff bristles on the 
stem. 
Rosa cinnamomea, Linn.; Torr & Gray, FI. 1, p. 459. On the Salinas, and near San Bernar¬ 
dino ; April. Our specimens agree with the European plant in most respects. The leaflets are 
pulverulent, rusty underneath. The prickles are all stipular and stout. 
Zauschneria Californica, var. « and /?. Torr. & Gray, FI. 1, p. 486. San Juan, California, 
and Puerto del Dado ; August and Hovemher. 
(Enothera coronopifolia, Torr. & Gray, FI. 1, p. 495. On the Gila river ; June. 
Oenothera vinosa, Lindl.; Torr. & Gray, FI. 1, p. 503. Hear San Diego ; April. 
(Enothera viminea, Dougl. in Hook. Bot. Mag. t. 2873. San Isabel; May. 
(Enothera bistorta, Nutt, in Torr. & Gray, FI. 1, p. 508. With the last; May. 
(Enothera albicaulis, Nutt., var. integrifolia? Kikal Mungo ; March. A low form, with 
leaves on long tapering petioles, and the lamina repand-dentate at the base. It seems to be 
one of the numerous varieties of (Enothera albicaulis. 
(Enothera cheiranthifolia, FLornem.; Lindl. Bot. Reg. t. 1040. Santa Clara, Tulare valley, 
San Gabriel, &c.; March. 
(Enothera strigulosa, Torr. & Gray, FI. 1, p. 512. Los Angeles, &c.; common; March. 
Apodanthera? undulata, Gray, PI. Wright. 2 , p. 60. San Pedro of the Gila; July. Male 
flowers only. 
Cucurbita digitata, Gray, l. c. On the Burro mountains ; August. Flowers or peduncles 
nearly two inches long. Dr. Gray (1. c.) remarks that the calyx-lobes of the male flowers are 
obsolete ; hut they are quite conspicuous in Dr. Antisell’s specimens. Santa Barbara and Los 
Angeles. 
Megarrhiza Californica, Torr. in Whipple’s Rep.; January and March. This is one 
of the plants known in California by the name of big-root or giant-root, of which a more detailed 
account is given in the work just quoted. 
Ribes Californicum, Hook. & Am. Bot. Beechey, p. 346. Salinas valley and Santa Inez; 
January. Some of the specimens have only small sub-axillary species, without scattered prickles; 
others have strong stipular spines and scattered retrorse prickles. To this species we refer R. 
occidentale and suhvestitum. See Whipple’s Report. 
Ribes malvaceum, Smith; Torr. & Gray, FI. 1, p. 552. San Luis Obispo ; January. 
Echinocactus Lecontei, Engelm. in Proceed. Amer. Acad. Sc. 3, p. 19, and in Whipple’s Pa¬ 
cific R. R. Rep. Colorado desert, California. 
Fouquieria splendens, Engelm. in Wisliz. N. Mex.p. 98; Gray, PI. Wright, 1 ,p. 76, and 2, 
p. 63. F. spinosa, Torr. in Emory’s Rep. 147, t. 8, excl. syn. Cariso creek, California ; May. 
Lithophragma cymbalaria, Torr. & Gray, FI. 1 ,p. 585. Santa Clara and Santa Barbara; 
February. 
